28176 Parallax Inc, 28176 Datasheet - Page 251

• Manufacturer Part Number: 28176
• Description: KIT PARTS PROCESS CONTROL W/TEXT
• Manufacturer: Parallax Inc

Specifications of 28176

• Accessory Type: Process Control
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: BASIC Stamp® 2 and Board of Education
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

In the schematic for Figure 7-11, if the V(LM34) > V(Setpoint), the output will be low
(0). If V(LM34) < V(Setpoint), output will be high (1). Assumes remainder of current
code present for monitoring.
Challenge 7-2 Solution
Part A:
Part B:
√
√
DEBUG "!O oCheck.chkHeatRun=82.,53.,8.,8.,Heater Run,0,(BLUE),(WHITE),11", CR
Temp
Drive_Heater:
In the Initialization section add:
DEBUG "!O chkHeatRun.Delete",CR
' Create control
In the
DEBUG "!READ (chkHeaterRun)",CR
IF Temp = 0 THEN
ELSE
ENDIF
RETURN
DEBUGIN HeaterRun
PAUSE 50
LOW Heater
HIGH Heater
ReadSP_Controls
PIN 3
' If Op-Amp low, Voltage LM34>Voltage Setpoint
routine, add:
' Request/control fan based on state
' Delete duplicate if it exists
Figure 7-11
Solution for High/Low
Temperature Sensing